1 Round for $19
3 Rounds for $50
1 Spare Tail for $5
1 Spare Nose Cone for $5
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Finally, a safe round that does something and doesn't just hit the ground with a thump. A 3d printed reenactment version of the 8cm bouncing round, Wgr.39. This round is designed to be usable with a CO2 cartridge which releases on impact. CO2 not included! The CO2 launches the round back into the air about 2 feet or so similar to how the original round would launch itself back into the air. By adding some powder into the rubber nose, the round will also make a cloud of powder. These rounds are designed to fit a 3.25" ID tube which is approximately 82.5mm. This was done because this is a standard size tube which is widely available. We have used this size tube for all of our past replica mortar tubes and it also coincides with the ID of many original tubes as the German mortars which came out of the eastern block countries were almost always bored out to this size to accept Soviet rounds.
Instructions for use: It is recommended to only install the CO2 cartridge just before use.
1. Unscrew the plug located under the rubber nose cone on the top of the body. This can also be done without popping off the rubber nose.
2. Slide a 12 gram CO2 cartridge into the tube inside the main body with the puncture end facing the top of the round towards the threaded plug which contains the firing pin.
3. Screw the plug back in. The CO2 cartridge is held in place by a small magnet but it only requires a fall from about 1.5 feet to release the CO2 cartridge and send it into the firing pin.
3a. To add powder to the nose cone, stuff the 3 vent holes in the plug with some cotton balls or similar material. It is important to prevent any powder from entering the CO2 cartridge area while not impeding the release of pressure.
3b. Add powder to the rubber nose cone. Do not over fill and mind the weight. One to two tablespoons should be adequate.
4. Press the rubber nose cone back onto the top of the round. It clips around the cap and seals fairly tightly.
The round is ready for use.
The full loaded weight of the round is less than 12oz. The light weight combined with the rubber nose cone make it much safer than most other reenactment rounds I have seen in use over the years.
You will still have to devise your own means of launching rounds for the time being but a CO2 launching system is currently being developed.
These rounds are not completely perfect but they look very good and even better than some of the reproductions which I have encountered. They are sold unpainted. I recommend standard Rust Oleum deep forest green or a similar camo green color. The bouncing rounds were always green, never red and I am unsure if Tan was ever used. The green color seems to have been reserved for these rounds. The fuse itself does not need to be painted as the correct fuse for this type of round was the aluminum Wgr. Z. 38.
These rounds are actually quite durable and in testing they have held up well for about 3 firings on average. Generally a tail fin will be the first thing to go, which are replaceable on this round. These rounds are a balance of durability and cost. I could make them almost indestructible, but then they would cost significantly more and rounds will go missing over time anyway so it is more practical to error on the more inexpensive side.
Disclaimer: These are not intended to be fired directly at anyone or anyone's property or animals etc...The rounds should only be fired at an angle greater than 45degrees. The safety features are intended to help mitigate potential damage from a misplaced round. Safety should always be your first concern so think before you drop a round somewhere.
Safety for reenactment projectiles is a complicated subject and there are many opinions. It generally comes down to 1 thing in the end, the force a projectile will have on impact. This is determined by the size, weight, and the material the round is made from. A rubber round is still dangerous if it weighs too much because it would still have considerable energy to transfer to whatever it hits. You want to balance the weight of a projectile with its size and wind resistance. For an 8cm sized round the maximum safe weight is about 12oz. for a 5cm projectile it is about 7oz. While soft materials can absorb some energy to soften a blow, the weight to size ratio is far more important than the rigidity of the material.
